Niacin (Vitamin B-3) is an essential B-group vitamin necessary for good health. Vitamin B-3 is involved in a range of metabolic processes and is a coenzyme in several important biochemical functions. NOW® natural and organic Supplements are an effective way to ensure you and your loved ones are getting essential vitamins, minerals and nutrients for daily optimal health. Since 1968, NOW has been making top quality products that are tested to the highest standards to empower people to lead healthier lives. NOW Foods' promise - what is on the label, is precisely what is in the bottle.    Recommended Dosage: Adult Dosage: Take 1 capsule daily with food.    Caution: Do not exceed the recommended dose except on the advice of a physician. People sensitive to nicotinic acid may experience flushing of the skin that is generally mild and transient (temporary).